Introducing the Fosi Audio BT20A Bluetooth 5.0 Stereo Audio 2.0CH Amplifier Receiver Mini Hi-Fi. This digital amplifier is designed with a frequency range of 20Hz - 20kHz (±1 dB) and features stereo L/R RCA audio inputs, banana speaker jacks, and Bluetooth transmission up to 50 ft. The amplifier is powered by TPA3116D2*2 NE5532*2 chips and has a MAX power output of 100W x 2. The Fosi Audio BT20A is compatible with antennas and has a power adapter of 24V/4.5A. This unit is designed with a sleek black color and has dimensions of 5.2 x 3.54 x 1.42 inches. It comes with a 1-year manufacturer warranty and has a model number of BT20A. This digital amplifier is perfect for anyone looking to enhance their home audio experience.